Steam engine



,W. B. GORR STEAM ENGINE April '8, 1930.

` |NvENTo`R ATTORNEY .April s, 1930. w. B. Goan 1,753,925

STEAM ENGINE Filed Deo. 7, 1927 2 sheets-smet 2 INVENTOR ATTORN EYPatented Apr. 8, 1930 UNITED STATES PME-:N5111 OFFICE y WALTER B. GORR,OF ERIE, PENNSYLVANIA, ASSIGNOR T SPINNER ENGINE COM- PANY, OF ERIE,PENNSYLVANIA, A CORPORATION OIF PENNSYLVANIA STEAM ENGINE Applicationfiled December 7, 192,7. Serial No. 238,426.`

This invention is designed to improve the cross head guide construction.It is desirable in engines to have the cross head guide exactly inalinement with the axis of the cylinder so that the reciprocating partsmay move freely and without binding. In constructing engines forming theparts so as to give perfeet alinement between the cylinder and theguides has given diliiculty particularly with relation to cross headguides having open sides giving free accessrto the cross head.

With such open guides it is desirable to reverse the direction which theguides face with the reversal of the running direction of the engine sothat the wearing surface of the guide willv at all times be the maj orsurface.

With the present invention the cross head guide is so formed as to bepositively alined with the cylinder and also is so' arranged that it maybe readily reversed thus forming the guide for engines running in eitherdirection. Features and details of the invention will appear more fullyfrom the specifi cation and claims.

A preferable embodiment of the invention is illustrated in theaccompanying drawings as follows V:-

Fig. l shows a side elevation of an engine, partly in section.

Fig. 2 a front elevation of the engine.

Fig. 3 a section on the line 3-3 in Fig. 4.

Fig. 4 a section on the line 4 4 in Fig. 3.

1 marks the main frame of the engine, 9. the cylinder, 3 the cylinderhead, and 4 a cross head connecting frame. This connecting frame 4 has a{iange 5 which rests on a seat 6 at the upper end of the main frame andis secured thereon by screws 7. The upper end of the connection has aflanged seat 8 with a cylindrical shoulder 9 and the flange is seated ona seat 10 at the end of the head 3, the head having a cylindricalinternal shoulder 11 receiving the shoulder 9. The cylinder head 3likewise has an annular shoulder 13 fitting a shoulder 14. A cross headguide 15 of cylindrical form has a cylindrical main surface concentricwith the shoulder 9, being preferably machined with the same set up. Across head 16 has its main wearing surface cylindrical and conforming tothe cross head guide 15. The cross head 16 has the extending edges 16ZLand guide bars 17 secured to the guide frame extend over theextendededges 16a, thus holding the cross head to its seat. A piston rod18 extends from a piston 19 through a gland 2O in the cylinder head. Aconnecting rod 21 extends from the cross head to the crank, the crankbeing shown in dotted lines.

It will be noted with this construction that the cross head guide isopen at the front side giving direct access to the cross head; that theguide frame may be machined with a cylindrical guidesurface and that thecylindrical shoulders 9 are exactly concentric and the surface of theseat 8 is in a plane directly at right angles to the axis so that theordinary turning operation perfectly alines these parts, in fact, itisdifiicult to get them out of alinement. The same may be said of thecylinder head, these parts being turned in the ordinary turningoperation and the resulting parts necessarily being concentric and inalinement so that when the head is placed on the cylinder it is againconcentric result. The cross head guide frame may be rotated'l()o aboutits axis so that the pressurc on the cross head guide surface willfollow the cylindrical or major guiding surface in the running of theengine, this presk sure being due to the angularity of the connectingrod. The structure, as will be noted. permits of a frame which may bereadily uncovered as shown to disclose the operating parts.

While I have shown a separate cylinder head 3 between the seat 9 and thecylinder walls I do not wish wto be limited to a construction in whichsuch part is interposed between the cylinder proper and the supportingseat.

l/Vhat I claim as new is 1. In an engine, the combination of a mainframe; a cylinder; a connecting frame between the cylinder and mainframe having a cylindrical cross head guiding surface at one side, analining and centering seat for the cylinder, and a support Which restson a seat at the upper end of the main frame; a cross head on theguiding surface; and guide plates extending over the cross head.

2. In an engine the Combination of a main frame; a Cylinder; aconnecting frame between the Cylinder and main frame having :Lcylindrical cross head guiding surface :it one side, an alining andcentering seat for the cylinder, and a support which rests on a seat atthe upper end of the main frame, said connecting frame being reversibleon its axis;

a cross head on the guiding surface; and guide plates extending over thecross head.

In testimony whereof I have hereunto set my hand.

WALTER B. GORR.

